First, I was getting the following error - after chosing to view the error page, I saw..
"ERROR: You must specify at least one accepted payment method."
Adjusting my profile took care of it (I noticed that although I saw checkboxes selected on the error page from PA, the AW profile itself did not have a payment option selected.)
After this, I am now getting error messages, but the page will not load to allow me to view it. If I uncheck payment options in my AW profile, the page will show when I select "yes" - so that tells me that one problem is fixed, the next problem is not fixed and I have no feedback.
I'm kind of surprised there are so few posts about PA here. I would suspect that others have had this issue before.